<template>
	<view class="add_container">
		<u--form
			labelPosition="top"
			:model="formdata"
			ref="uForm"
		>
			<u-form-item
				label="标题"
				borderBottom
			>
				<u--input
					v-model="formdata.title"
					placeholder="请输入标题"
					border="none"
				/>
			</u-form-item>
			
			<u-form-item
				label="描述"
				borderBottom
			>
				<u--input
					v-model="formdata.des"
					placeholder="请输入描述"
					border="none"
				/>
			</u-form-item>
			
			<u-form-item
				label="图片"
				borderBottom
			>
				<u-upload
					:fileList="fileList1"
					@afterRead="afterRead"
					@delete="deletePic"
					name="1"
					multiple
					:maxCount="9"
				></u-upload>
			</u-form-item>
		</u--form>
		
		<view class="submit_content">
			<u-button type="primary">提 交</u-button>
		</view>
	</view>
</template>

<script>
	export default {
		data() {
			return {
				formdata: {
					title: '',
					des: ''
				},
				fileList1: [],
			}
		},
		methods:{
			// 删除图片
			deletePic(event) {
				this[`fileList${event.name}`].splice(event.index, 1)
			},
			// 新增图片
			async afterRead(event) {
				// 当设置 multiple 为 true 时, file 为数组格式，否则为对象格式
				let lists = [].concat(event.file)
				let fileListLen = this[`fileList${event.name}`].length
				lists.map((item) => {
					this[`fileList${event.name}`].push({
						...item,
						status: 'uploading',
						message: '上传中'
					})
				})
				for (let i = 0; i < lists.length; i++) {
					const result = await this.uploadFilePromise(lists[i].url)
					let item = this[`fileList${event.name}`][fileListLen]
					this[`fileList${event.name}`].splice(fileListLen, 1, Object.assign(item, {
						status: 'success',
						message: '',
						url: result
					}))
					fileListLen++
				}
			},
			uploadFilePromise(url) {
				return new Promise((resolve, reject) => {
					let a = uni.uploadFile({
						url: 'http://192.168.2.21:7001/upload', // 仅为示例，非真实的接口地址
						filePath: url,
						name: 'file',
						formData: {
							user: 'test'
						},
						success: (res) => {
							setTimeout(() => {
								resolve(res.data.data)
							}, 1000)
						}
					});
				})
			},
		}
	}
</script>

<style lang="scss" scoped>
	.add_container{
		background-color: #fff;
		padding: 0 30rpx;
	}
	.submit_content{
		padding: 30rpx 0;
	}
</style>